<#
.SYNOPSIS
    Bookworm 启动 wrapper (v3.1.0 引入)

.DESCRIPTION
    桌面 .lnk 调用此 wrapper 而非直调 claude.ps1, 让启动逻辑可热修复 (改 wrapper 不需重 bake .lnk).

    职责:
      1. 动态查找 claude.ps1 真实路径 (npm config get prefix → 兜底候选)
      2. claude.ps1 stale (npm uninstall/换版本/换 prefix) → 弹清晰 GUI 引导, 不再"快捷方式失效"
      3. 失败时不静默, 写日志 + GUI 弹窗

    与 .lnk 的契约:
      .lnk Args = -NoLogo -NoExit -ExecutionPolicy Bypass -File "<bw-launch.ps1 绝对路径>"
                  --dangerously-skip-permissions
      $args[0..N] 转发给 claude.ps1

.NOTES
    v3.1.0 (2026-04-25) — 引入 wrapper 模式 (闭合 L4 局限: bake claude.ps1 路径 stale)
    分发: Phase 7 安装时复制到 $BootDir\bw-launch.ps1
#>

$ErrorActionPreference = "Continue"
$bwLaunchLog = Join-Path $env:TEMP "bw-launch.log"

function Write-BwLaunchLog {
    param([string]$Level, [string]$Msg)
    try {
        $line = "[$([DateTime]::Now.ToString('yyyy-MM-dd HH:mm:ss'))] [$Level] $Msg"
        $line | Out-File -FilePath $bwLaunchLog -Append -Encoding UTF8 -EA SilentlyContinue
    } catch {}
}

function Show-LaunchError {
    param([string]$Title, [string]$Body)
    Write-BwLaunchLog "ERROR" "$Title :: $Body"
    Write-Host ""
    Write-Host "  [!] $Title" -ForegroundColor Red
    Write-Host ""
    Write-Host $Body -ForegroundColor Yellow
    Write-Host ""
    Write-Host "  日志: $bwLaunchLog" -ForegroundColor Gray
    Write-Host ""
    try {
        Add-Type -AssemblyName System.Windows.Forms -EA Stop
        [System.Windows.Forms.MessageBox]::Show("$Body`n`n详情见: $bwLaunchLog", "Bookworm 启动失败 — $Title", 'OK', 'Error') | Out-Null
    } catch {}
    Read-Host "按回车关闭"
}

Write-BwLaunchLog "INFO" "bw-launch wrapper 启动 args=$($args -join ' ')"

# ── 1. PATH 三层重载 (即便桌面 .lnk 不依赖 PATH, 子 claude.ps1 调 node 仍依赖) ──
$env:Path = [Environment]::GetEnvironmentVariable('Path','Machine') + ';' + [Environment]::GetEnvironmentVariable('Path','User')

try {
    $npmPrefix = (& npm config get prefix 2>$null | Select-Object -First 1).Trim()
    if ($npmPrefix -and (Test-Path $npmPrefix) -and ($env:Path -notlike "*$npmPrefix*")) {
        $env:Path = "$npmPrefix;$env:Path"
    }
} catch {
    Write-BwLaunchLog "WARN" "npm config get prefix 失败: $_"
}

foreach ($p in @("$env:APPDATA\npm", "$env:ProgramFiles\nodejs", "$env:LOCALAPPDATA\npm")) {
    if ((Test-Path $p) -and ($env:Path -notlike "*$p*")) {
        $env:Path = "$p;$env:Path"
    }
}

# ── 2. 动态定位 claude.ps1 ──
$claudePs1 = $null

# 优先 Get-Command (PATH 已重载)
$claudeCmd = Get-Command claude -ErrorAction SilentlyContinue
if ($claudeCmd -and $claudeCmd.Source -and $claudeCmd.Source.EndsWith('.ps1') -and (Test-Path $claudeCmd.Source)) {
    $claudePs1 = $claudeCmd.Source
    Write-BwLaunchLog "INFO" "claude.ps1 from Get-Command: $claudePs1"
}

# 兜底 npm config get prefix
if (-not $claudePs1) {
    try {
        $candidate = Join-Path $npmPrefix "claude.ps1"
        if (Test-Path $candidate) {
            $claudePs1 = $candidate
            Write-BwLaunchLog "INFO" "claude.ps1 from npm prefix: $claudePs1"
        }
    } catch {}
}

# 最终硬编码兜底
if (-not $claudePs1) {
    foreach ($p in @("$env:APPDATA\npm\claude.ps1", "$env:ProgramFiles\nodejs\claude.ps1", "$env:LOCALAPPDATA\npm\claude.ps1")) {
        if (Test-Path $p) {
            $claudePs1 = $p
            Write-BwLaunchLog "INFO" "claude.ps1 from hardcoded: $claudePs1"
            break
        }
    }
}

if (-not $claudePs1 -or -not (Test-Path $claudePs1)) {
    $diag = "未找到 claude.ps1 文件.`n`n"
    $diag += "诊断信息:`n"
    $diag += "  npm config get prefix: $(if ($npmPrefix) { $npmPrefix } else { '(查询失败)' })`n"
    $diag += "  PATH 中 npm/nodejs 片段:`n"
    foreach ($p in (($env:Path -split ';') | Where-Object { $_ -match 'npm|nodejs' })) {
        $diag += "    $p`n"
    }
    $diag += "`n修复方案:`n"
    $diag += "  方案 A: 命令行运行 npm i -g @anthropic-ai/claude-code`n"
    $diag += "  方案 B: 重新双击 Bookworm-Setup.exe 修复安装"
    Show-LaunchError "Claude Code 未找到" $diag
    exit 1
}

# ── 3. 启动 claude.ps1 + 转发 $args (--dangerously-skip-permissions 等) ──
Write-BwLaunchLog "INFO" "调用 claude.ps1 args=$($args -join ' ')"
try {
    & $claudePs1 @args
    $exitCode = $LASTEXITCODE
    Write-BwLaunchLog "INFO" "claude.ps1 退出码: $exitCode"
    if ($exitCode -ne 0) {
        Write-Host ""
        Write-Host "  [!] Claude 进程退出码: $exitCode" -ForegroundColor Yellow
        Write-Host "  日志: $bwLaunchLog" -ForegroundColor Gray
    }
    exit $exitCode
} catch {
    Show-LaunchError "Claude 启动异常" "异常信息: $($_.Exception.Message)"
    exit 1
}